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Atrial fibrillation is a quivering or irregular heartbeat, or arrhythmia. Atrial fibrillation, also known as AFib or AF, can lead to blood clots, , heart failure and other heart-related complications. AFib is the most common type of irregular heart rhythm. Over 5 million Americans are living with AFib today, and more than 12 million people are projected to have AFib by 2030.

Here’s how patients have described their experience:

“My heart flip-flops, skips beats, and feels like it’s banging against my chest wall, especially if I’m carrying stuff up my stairs or bending down.”

“I was nauseated, light-headed and weak. I had a really fast heartbeat and felt like I was gasping for air.”

“I had no symptoms at all. I discovered my AFib at a regular check-up. I’m glad we found it early.”

What happens during AFib?

Normally, your heart contracts and relaxes to a regular beat. In AFib, the upper chambers of the heart, or the atria, beat irregularly. Because not enough blood is being pumped out of the atria, blood pools in the area. The pooled blood can clot – which can be extremely dangerous.

If a blood clot forms, it can be pumped out of the heart to the brain. This blocks the blood supply to the brain and causes a stroke.

About 15% to 20% of people who have strokes have this heart arrhythmia. The clot risk is why patients with this condition are prescribed blood thinners*. 

Untreated AFib doubles the risk of heart-related deaths and is associated with a fivefold increased risk for stroke. Yet many people are unaware that AFib is a serious condition.

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What are the stages of AFib?

Like many heart conditions, AFib is a progressive disease. It has four stages:

Stage 1: At risk for AFib

You have not been diagnosed with AFib and can take action to prevent it from developing. You should talk with your health care professional about detecting and treating AFib early, especially if you have risk factors for AFib.

Stage 2: Pre-AFib

You have not been diagnosed with AFib, but there may be abnormal structural or electrical functioning in your heart that can lead to it. Your health care professional will closely watch to see if AFib develops. You may begin treatment early to slow or stop the progression.

Stage 3: AFib

You have been diagnosed with AFib. You and your health care professional will discuss how severe your condition is and the best treatment for you, which could include medications to control the heart’s rhythm or rate, surgery or managing other existing health conditions. You will also learn how to reduce your risk of having a stroke. Your stroke risk may change as time goes on. Your health care team can use a risk calculator to determine your risk and guide treatment decisions.

Stage 4: Permanent AFib

You have permanent AFib that can’t be effectively treated with medications or surgery. You can still talk with your care team about managing your other health conditions, which may alleviate AFib symptoms, and assessing your yearly stroke risk.

It’s important to recognize the different stages of AFib because understanding your stage can help you prevent AFib, catch it early, or know how far your condition has progressed. You and your health care professional can then decide on the best treatment plan for you together.

AFib treatment saves lives and lowers risks

If you or someone you love has AFib, learn more about what it is; why treatment can save lives; and what you can do to reach your goals, lower your risks and live a healthy life.

If you think you may have AFib, here are your most important steps:

1. Know the symptoms
2. Get the right treatment
3. Reduce your risk for stroke and heart failure

We’re here to help you live your healthiest life!